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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Westar Resources Inc | Wyoming | 0 BBLs | 0 MCF | Feb 1989 - Dec 1990 |
| Westburne Petroleum Inc | Wyoming | 0 BBLs | 0 MCF | Mar 1984 - Jun 1990 |
| Westech Energy Corporation | Wyoming | 0 BBLs | 0 MCF | May 1997 - Jul 2004 |
| Western American Resources LLC | Wyoming | 0 BBLs | 0 MCF | Mar 2010 - Jun 2024 |
| Western Gas Resources Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1984 - Sep 2004 |
| Western Interior Energy Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1989 - Oct 1997 |
| Western Interior Oil & Gas Corp | Wyoming | 0 BBLs | 0 MCF | Dec 2006 - May 2015 |
| Western Oil Refining Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1994 |
| Western Operating Company | Wyoming | 0 BBLs | 0 MCF | Oct 2012 - Apr 2017 |
| Western Wellsite Services LLC | Wyoming | 0 BBLs | 0 MCF | Jan 2007 - Feb 2007 |
| Westland Energy Inc | Wyoming | 0 BBLs | 0 MCF | Jun 2003 - Jun 2005 |
| Westport Oil & Gas Company LP | Wyoming | 0 BBLs | 0 MCF | Jan 1980 - Jul 2006 |
| Weststar Oil & Gas Inc | Wyoming | 0 BBLs | 0 MCF | Apr 2006 - May 2016 |
| Wexpro Company | Wyoming | 9,193 BBLs | 2,558,291 MCF | Jan 1978 - Jun 2025 |
| Wexpro Development Company | Wyoming | 0 BBLs | 0 MCF | Jan 2016 - Jun 2022 |
| Wexpro II Company | Wyoming | 929 BBLs | 411,405 MCF | Mar 2017 - Jun 2025 |
| Wheless Drilling Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1978 |
| Whiskey Mountain Energy LLC | Wyoming | 0 BBLs | 0 MCF | Apr 2013 - Aug 2025 |
| Whisler Enterprise Company | Wyoming | 1,564 BBLs | 0 MCF | May 2021 - Jul 2025 |
| White River Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1992 - Jun 2007 |
| White Rock Oil & Gas LLC | Wyoming | 0 BBLs | 0 MCF | May 2015 - May 2024 |
| Whiting Oil & Gas Corporation | Wyoming | 0 BBLs | 0 MCF | Jun 1983 - Jun 2023 |
| Wichita River Oil Corporation | Wyoming | 0 BBLs | 0 MCF | Apr 1981 - Dec 1995 |
| Wieseler Clair F | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Nov 1985 |
| Wigley J M | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Mar 1985 |
| Wilbanks Exploration Inc | Wyoming | 0 BBLs | 0 MCF | Mar 1994 - Oct 1998 |
| Wildfire Partners Inc | Wyoming | 0 BBLs | 0 MCF | Jan 2002 - Dec 2009 |
| Wilkerson Frank M | Wyoming | 0 BBLs | 0 MCF | Jun 1982 - Sep 2002 |
| Williams Exploration Company | Wyoming | 0 BBLs | 0 MCF | Jan 1982 - Aug 1984 |
| Williams Leonard A | Wyoming | 0 BBLs | 0 MCF | Nov 1995 - Dec 2003 |
| Williams Lucille M | Wyoming | 0 BBLs | 0 MCF | Oct 2003 - Sep 2008 |
| Williams Ted H | Wyoming | 0 BBLs | 0 MCF | Nov 1998 - Dec 2008 |
| Williston Basin Cosul-Profit SH | Wyoming | 0 BBLs | 0 MCF | May 1987 - Dec 1989 |
| Wilshire Enterprises Inc | Wyoming | 0 BBLs | 0 MCF | Jun 1992 - Mar 2004 |
| Win Oil Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Jul 2021 |
| Winco Petroleum Corp | Wyoming | 0 BBLs | 0 MCF | Aug 1982 - Dec 1997 |
| Wind River Energy Commission | Wyoming | 1,032 BBLs | 0 MCF | Nov 2023 - Jul 2025 |
| Wind River Exploration | Wyoming | 3 BBLs | 0 MCF | Jan 1982 - Jul 2025 |
| Wind River Hydrocarbons Inc | Wyoming | 0 BBLs | 0 MCF | Jan 2011 - Sep 2020 |
| Windsor Energy Group LLC | Wyoming | 0 BBLs | 0 MCF | Aug 2003 - Aug 2021 |
| Windsor Oil & Gas Inc | Wyoming | 0 BBLs | 0 MCF | Jul 1998 - Apr 2009 |
| Winkler L W & Son | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 2001 |
| Winter Ridge Energy LLC | Wyoming | 0 BBLs | 0 MCF | Aug 2005 - Sep 2011 |
| WLP Oil Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1979 - Dec 2018 |
| WM Wy Energy Resources LL LLC | Wyoming | 0 BBLs | 0 MCF | Dec 2010 - May 2012 |
| Wnu Energy LLC | Wyoming | 0 BBLs | 2,253 MCF | Dec 2020 - Jul 2025 |
| Wold Energy Partners LLC | Wyoming | 0 BBLs | 0 MCF | Dec 2013 - Feb 2022 |
| Wold John S | Wyoming | 0 BBLs | 0 MCF | Nov 1978 - Feb 1991 |
| Wold Oil & Gas | Wyoming | 0 BBLs | 0 MCF | Jan 1984 - Oct 1996 |
| Wold Oil Properties Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1984 - Aug 2014 |